New Pump Invention Parts 1- IV

Looks like a large impeller pump, works well pumping water off a ladder, what's new or different other than size?

John

I don't think it is an impeller pump regard the position of the in and outlet is 180degrees apart... Usuallt an impeller pump will have the inlet on the center of the impeller an the outlet on the side... This also looks like a low rpm/high pressure type. (hand crank) As far as I know impeller pumps needs higer rpm..

It looks like a sliding vane pump.

http://www.worldbook.com/wb/Media?id=pc201173

I remember that Evinrude used this configuration

as the water pump in their outboard engines.

The impeller was made of elastomer, and

the intake and exhaust were 180 apart.

The shaft was offset from the center of the chamber with

the ports on either side.

Intake was one the expansion side.

It was self priming and these things could go for years

with no problems.

I think they wouldnt be able to handle dirty fluids / slurries.

The impeller does have to slide til it gets primed.

Just from seeing the videos, I think the proud inventor is simply claiming that his design is the only all cheap-plastic pump to be able to accomplish the pumping tasks he is demonstrating. What he cannot show in the videos however, is how long the pump will last under heavy loads. What good is a cheap, all cheap-plastic pump that can pump thick, almost non-viscoelastic substances albeit at only a five gallons at a time before snapping a rotor or series of fins?

That hand drill in "4" looked like it was having a very difficult time - which is obviously the point - making the pump seem heartier than the drive mechanism to be attached to it. But an industrial motor without a clutch may snap that pump in two after more than a few brief seconds of pumping.

Any one know what makes this pump different and whether or not it can perform work over more than a few seconds at a time?

These are prototypes designed as inexpensive high-volume plastic water pumps. To be hand-cranked or otherwise.

Like every boy with a new toy, the inventors decided to try a few things. Just to see if there might be commercialization with other materials, other fluids. I would say their first test results were pretty interesting, considering the non-primed design. There were no plastic parts failures, although even if there were, any of the parts can be made with stronger materials.

You are right to question longevity, endurance, etc. We'll show you that later when the bronze/brass versions arrive.

To me, the pump body looks oval; this leads me to believe that it is a "Roots" style pump. Roots pumps were originally designed to pump water out of mines. Regardless of the type of pump, I'm sure that their design isn't anything that hasn't been done before.

That's what I like about all of the comments - it "looks like". but it "looks like" a vane pump, a "roots", a centrifugal, and on and on....

After two thousand years, there couldn't possibly be anything new in pumps, could there? Gee, I wonder how they got a patent.

Keep thinking!

I see no patent mentioned by number. If they have applied and received a number, they can tell all. Even if they have applied them can tell all as their priority is established.

By the sound when impelling air in Video IV is definitively type root. Sound as old roots in GM series 71 diesel two stroke motors.

Know nothing about fluid mechanics but is he pressurizing the tank with air? If so, no fluid need come into contact with the drive and it would self prime to 33 feet for water and more or less depending upon the density of the fluid pumped. Not sure what flow rate he was getting but since he indicated it was self priming to 12 feet and assuming a density of gear oil of 6 lb/gal (rough guess) and 8lb/gal for water then 12/33 * 6/8 * 14.7 = 4 psi. Pipe area appeared to be about 2 in diameter. 2/2 ^2 * pi =pi = 3.14159 in^2. Total force = 4psi * 3.14159 in^2 = 12.56 lb. Like I said, no fluid mechanic education so this is guess.

For sure this cannot be 'centrifugal pump' since speed doesn't look that high. Should be 'Positive Displacement Pump (PD type)'.

Different PD types are depicted and can be freely downloaded from: http://www.yesyen.com/downloads.php. (Game on Positive Displacement Pumps).

Until more info on this is available, one may check if this could be an extension of existing type or altogether a new kind!